Device for testing the hardness of metals,申请号US19500175829-传众专利搜索

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发明名称	Device for testing the hardness of metals
摘要
申请公布号	US2667065(A)	申请公布日期	1954.01.26
申请号	US19500175829	申请日期	1950.07.25
申请人	ALFREDO ERNST	发明人	ERNST ALFREDO
分类号	G01N3/42	主分类号	G01N3/42
代理机构		代理人
主权项
地址

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